55672771 has 12 divisors (see below), whose sum is σ = 70650360. Its totient is φ = 43380960.

The previous prime is 55672741. The next prime is 55672819. The reversal of 55672771 is 17727655.

It is not a de Polignac number, because 55672771 - 2²⁵ = 22118339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55672741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51106 + ... + 52183.

It is an arithmetic number, because the mean of its divisors is an integer number (5887530).

Almost surely, 2^55672771 is an apocalyptic number.

55672771 is a deficient number, since it is larger than the sum of its proper divisors (14977589).

55672771 is a wasteful number, since it uses less digits than its factorization.

55672771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103314 (or 103307 counting only the distinct ones).

The product of its digits is 102900, while the sum is 40.

The square root of 55672771 is about 7461.4188329030. The cubic root of 55672771 is about 381.8395820497.

Subtracting from 55672771 its reverse (17727655), we obtain a triangular number (37945116 = T₈₇₁₁).

It can be divided in two parts, 5567 and 2771, that added together give a palindrome (8338).

The spelling of 55672771 in words is "fifty-five million, six hundred seventy-two thousand, seven hundred seventy-one".